The deal, currently valued at about $10 billion, passed with heavy support from NYSE shareholders at a special meeting convened at the NYSE’s downtown Manhattan headquarters Monday, according to people familiar with the preliminary results. ICE is having a separate vote.

The deal still has some hoops to jump through, notably in ironing out overlaps in the commodities business, with European regulators.

Unless European regulators decide to block the deal — an outcome considered unlikely — today’s votes by NYSE and ICE shareholders to approve the transaction mark the end of the Big Board as a standalone company.

Here’s a timeline of one of the cornerstones of American capitalism for the past 220 years:

May 17, 1792: Birth of the Big Board: the Buttonwood Agreement is signed.

March 1817: A formal organization is created, called the New York Stock & Exchange Board.

Dec. 9, 1865: New York Stock Exchange moves into the first building of its own at 10 and 12 Broad Street.

Sept. 18, 1873:Jay Cooke & Co. fails, leading to the Panic of 1873 and the NYSE to close for 10 days.

April 1903: The current trading floor at Broad and Wall Street opens with an elaborate celebration including a brass band.

October 1907: Concerns about Knickerbocker Trust Co. lead to the Panic of 1907.

July 31, 1914 – December 15, 1914: As World War I erupts in Europe, global trading is halted. The NYSE doesn’t trade for 4 1Ž2 months.

June 12, 1928: Stock transactions total more than 5,000,000 shares for the first time.

Oct. 28-29, 1929: The Dow tumbles 13% and then another 11.7% over two days in what became known as the Great Crash.

May 27, 1933: Securities Act of 1933 enacted.

March 29, 1948: Members of United Financial Employees’ Union go on strike. The strike lasts a month, but the exchange remains open.

Nov. 23, 1954: Dow Jones Industrial Average closes at 382.74, above its 1929 peak for the first time.

1961: The NYSE’s average daily volume tops 4 million shares.

1968: Heavy trading creates a paperwork backlog that forces the New York Stock Exchange to shut down on Wednesdays during the second half of the year.